In Java, what is the best way to share functionality between enum value?

I'm considering the best way to create common functionality between enum values, which implement an abstract method declared in the enum.
For example, I want to share the first line of the methods defined by VALUE1 and VALUE2:

public enum EnumExample {
    VALUE1() {
       public void doSomething(String arg) {
           doSomethingElse(); // I don't want to repeat this line
           calculateFoo();
    },
    VALUE2() {
        public void doSomething(String arg) {
            doSomethingElse(); // I don't want to repeat this line
            calculateBar();
        }
    },
    VALUE3() {
        public void doSomething(String arg) {
            doSomethingUnrelated();
        }
    };
    public abstract void doSomething(String arg);
}

Currently, I just repeat the code for each value, but I'm sure there is a better way.
Any help will be much appreciated!